Several counties in the state of Michigan use a Mile Road System to name different roads and streets. The most commonly known system is that of Detroit, including 8 Mile Road, the dividing line between Detroit and its northern suburbs as well as Wayne County and Oakland, Macomb and Washtenaw counties. Bay County In Bay County, roads west of the Saginaw River are numbered with the river (or, north of the river, State Street) marking the origin. 0 Mile—Saginaw River 1 Mile—Euclid Avenue 2 Mile—Two Mile Road 3 Mile—Three Mile Road 4 Mile—Four Mile Road 5 Mile—Mackinaw Road 6 Mile—Fraser Road 7 Mile—Seven Mile Road 8 Mile—Eight Mile Road 9 Mile—Nine Mile Road 10 Mile—Garfield Road 11 Mile—Eleven Mile Road 12 Mile—Carter Road 13 Mile—Flajole Road 14 Mile—Rockwell Road (Bay–Midland county line) Calhoun County Going east from the county line between Calhoun and Kalamazoo counties. Many of the roads are known by both their mile names and their traditional names. 0 Mile—Calhoun–Kalamazoo county line Mile— Mile Road 1 Mile—1 Mile Road, Renton Road Mile— Mile Road 2 Mile—Stone Jug Road Mile— Mile Road 3 Mile—Helmer Road Mile— Mile Road 4 Mile—Sonoma Road Mile— Mile Road 5 Mile—Capital Avenue 6 Mile—Cotton Lake Road Mile— Mile Road 7 Mile—7 Mile Road Mile—Beadle Lake Road 8 Mile—Union City Road Mile—Woodlin Road 9 Mile—9 Mile Road Mile— Mile Road, Wattles Road 10 Mile—Cady Road Mile—Jessup Road 11 Mile—Wheatfield Road Mile— Mile Road 12 Mile—12 Mile Road 13 Mile—13 Mile Road 14 Mile—14 Mile Road 15 Mile—15 Mile Road 16 Mile—16 Mile Road Mile— Mile Road, Linden Street 17 Mile—Kalamazoo Avenue, Old 27 Mile—Marshall Avenue 18 Mile—18 Mile Road Mile— Mile Road 19 Mile—19 Mile Road 20 Mile—20 Mile Road 21 Mile—21 Mile Road 22 Mile—22 Mile Road Mile— Mile Road 23 Mile—23 Mile Road 24 Mile—24 Mile Road 25 Mile—25 Mile Road 26 Mile—Starr Commonwealth Road 27 Mile—27 Mile Road 28 Mile—Duck Lake Road, Eaton Road Mile—Maple Street 29 Mile—Clark Street Mile—Newburg Road 30 Mile—Van Wert Road, Calhoun Road Metropolitan Detroit Ford Road (equivalent of 0 Mile Road, western city, suburbs) Warren Ave (equivalent of 1 Mile Road, western city, suburbs) Joy Road (equivalent of 2 Mile Road in Washtenaw and Wayne counties) Plymouth Road (equivalent of 3 Mile Road, western city, suburbs) Schoolcraft Road (equivalent of 4 Mile Road, western city, suburbs) 5 Mile Road—Fenkell Avenue (in Detroit) 6 Mile Road—McNichols Avenue (in